B4i vs Koordinator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
B4i
This navigation tool converts between UTM and Lat/Lon coordinate systems, supporting various datums and formats. It displays current navigational information and allows sharing locations via SMS or email. Features include text-to-speech for coordinates and an animated compass.
- UTM to Lat/Lon conversion
- Support for different datums
- Current navigational information display
- Location sharing via SMS/Email
- Text-to-speech for coordinates
- Animated compass
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A navigational calculator that allows converting between UTM and Lat / Lon coordinates systems and between different datums and formats. The second page shows the current navigational information and allows you to send the location by SMS or Email. New Speak button. Speaks the current coordinate (text to speech). New animated compass.
Koordinator
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Koordinator instantly converts between all major coordinate formats — Decimal Degrees, DMS, DDM, UTM, MGRS, Gauß-Krüger, and Plus Codes. Paste any coordinate, type it in, or use your current location. Perfect for hikers, pilots, surveyors, and anyone who works with maps. For informational purposes only. Not suitable for safety-critical navigation.
Screenshots
Verdict
The clearest difference is update cadence: Koordinator at every 5 weeks against B4i's every 3 months. B4i's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
B4i ships an update every 3 months, Koordinator every 5 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.
| Parameter | B4i | Koordinator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 17 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Erel Uziel | Markus Birkner |
In-app purchases
B4i
No in-app purchases
Koordinator
No in-app purchases
